She takes PRIDE in her memory, but can't EVER keep her lies straight. And she never stops lying, not for a second. Travis tried to tell her, her lying is what was ruining her life. So what does she do....kills him and creates even more lies.
As for her Einstein IQ, how smart is she really if she is always gets cornered in her lies. Memorizing a dictionary does not equal intelligence in my book. I think her ability to memorize the meaning of words bumped up her IQ quota, but really she is a dumb as a rock. AND as thin skinned as an onion. IMO